String Case Conversion - Problem Solution

Explore three methods to solve the problem of converting string cases.

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def solution(s):
    result = ""
    for i in range(len(s)): # Loop through the string length
        if i % 2 == 0: # Convert even-indexed characters to lowercase
            result += s[i].lower()
        else: # Convert odd-indexed characters to uppercase
            result += s[i].upper()
    return result

Using this method, you can convert even-indexed characters in the input string s to lowercase and odd-indexed characters to uppercase, then return the result.

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input_string = "CoDeFrIeNds"

result = solution(input_string)
print(result)  # Output: "cOdEfRiEnDs"